Update from Unreal Engine 4.14 to 4.15

We wanted to upgrade our C++ Paper2D project from version 4.14 to 4.15 and we had some compile errors. Visual Studio complained that, it can’t find some C++ Paper2D related classes which are currently used in our project.

If you check the this line of code, thrown by VS, you discover that this error is given by a template class in ConstructorHelpers.h. In short, the engine doesn’t have a clue about this class, to convert it, it means that an include file is missing in our project.

To solve it, we just added this include #include “Paper2DClasses.h” in the main header from the project( name of your project.h)